alt Hacker NewsThey could.
but.... running PGO is just too much pain.
We can't do it "incrementally", can we? How about combining with LTO?
edit: I was thinking profiling individual module on a test driver and link them after PGO
They could.
but.... running PGO is just too much pain.
We can't do it "incrementally", can we? How about combining with LTO?
edit: I was thinking profiling individual module on a test driver and link them after PGO
I don't know if an optimization is allowed to "invent" a write, but I would be surprised if an optimizer goes that far because I have to believe that the number of cases where more writes improve performance are pretty slim.